Doffer mechanism for counter-molding machines



A. F. JACQUEMIN. DOFFER MECHANISM FOR COUNTER MOLDING MACHINES.

APPLICATION FILED SEPT.17| i918. 134 mm Patented July 6, 1920.

' 3 SHEETS-SHEET l.

V A. F. JACQUEMIN.

DOFFER MECHANISM FOR COUNTER MOLDING MACHINES.

APPLICATION FILED SEPT.I7. I918.

1,346,030. Patented July 6, 1920.

3 SHEETSSHEET 2- A. F. JACQUEMIN. DOFFER MECHANISM FOR COUNTER MOLDING MACHINES- APPLICATION FILED SEPT. 17. 1918.

1,346,030. Patented July 6, 1920.

UNITED STATES PATENT OFFICE.

AUGUSTE F. JACQUEMIN, OF KENNEBUNK, MAENE, ASSIGNGR T0 ROGERS FIBRE COMPANY, OF KENNEBUNK, MAINE, A CORPORATION OF MAINE.

DOFFER MECHANIST/i FOR COUNTERJVIOLDING MACHINES.

Original application fil ed May 7, 1918, Serial No. 233,031.

To all whom it may concern.-

Be it known that I, AUGUsTn F. JACQUE- MIN, a citizen of the United States, residing at Kennebunk, in the county of York and State of Maine, have invented certain linprovements in Doifer Mechanism for Counter-Molding Machines, of which the follow ing description, in connection with tlie ac companying drawings, is a specllication, like reference characters on the drawings indicating like parts in the several figures.

Counter molding machines of the automatic type usually comprise cooperating center and side molds designed to shape a counter, mechanism for operating said molds to cause them to apply molding pressure to the counter and then to release the counter from the molds, feeding mechanism that delivers the counter blanks one at a time to the molds, and a mechanism that removes the molded counter from the center mold after the molding operation has been completed. This last named mechanism is usually termed in the trade a dofiing mechanism. The present invention is particularly concerned with the mechanism that dofls the counter and it aims to devise a mechanism for performing this operation which will be simple in construction, reliable in operation, which can be economically manufactured, will. not be subject to rapid wear or deterioration, and which will generally meet the practical requirements of mechanisms of this type.

The manner in which it is proposed to accomplish these objects will be readily understood from the following description when read in connection with the accompanying drawings and the novel features will be particularly pointed out in the appended claims.

Referring now to the drawings,

Figure 1 is a side elevation of an automatic counter molding machine equipped with a doffing mechanism embodying the present invention, certain parts at the head of the machine being broken away;

Fig. 2 is a side elevation of the doffing mechanism;

Fig. 3 is a front elevation of the dofling mechanism;

Fig. 4- is a cross sectional view on the line 4l-4l, Fig. 3;

Specification of Letters Patent.

Patented July 6, 1920.

Divided and this application filed September Serial No. 254,595.

Fig. 5 is a front elevation showing certain parts of the molding mechanism;

Fig. 6 is a vertical cross sectional view through the mechanism shown in Fig. 5; and

Fig. 7 is a side elevation showing a detail of construction.

The invention is herein illustrated as applied to the counter molding machine shown and described in my co-pending application, Serial No. 233,031, filed May 7, 1918, of which application the present case is a division. For a complete understanding of the construction and operation of this machine reference should be made to said application. It is merely necessary for the purposes of the present application to state that the molding apparatus comprises a center mold 2 cooperating with two side molds 3 and d, Fig. 5, to mold the sides of a counter while a wiper plate 5 moves down over the front faces of the molds and forms a flange 0, Figs. 2 and 3, on the counter C. Operating mechanism is provided to relatively move the center and side molds from an open position, in which they are shown in Fig. 5, to a closed or molding position; and this mechanism applies a very heavy pressure to the molds so that they forcibly conform the counter blank to the shape or contour of the molding faces. A feeder, indicated in general at 6, is employed in this machine to present the counter blanks automatically to the molds while they are in their open position. The operating mechanism above referred to then relatively moves the molds to close them upon the counter blank so positioned between them and the wiper plate 5 next descends and crimps the flange while the counter is held by the molds. During this operation the feeder 6 retires to its counter receiving position and after the flange crimping operation has been completed the operating mechanism for the molds again moves them to their open position to permit the removal of the molded counter. The counter at this time rests on the center mold substantially as shown in Figs. 2 and 3 and it is desirable to remove or doff the counter from the center mold by moving it in a direction substantially longitudinally of the mold for the purpose of avoiding the spreading apart spring 30 immediately expands and throws of the upper edges of the counter at its for ward end during this operation. In order to facilitate this action the center mold 2 is moved forward horizontally out of the plane of the side' molds, as indicated in dotted lines in Fig. 6. The dofling mechanism performs its operation while the center mold is in this position.

This doffer mechanism comprises a doffer finger 8 secured fast to a dove-tail plate 9 which is adjustably fastened by bolts 10 in a block .11 that is secured to a slide 12. This slide is mounted in ways formed in a frame 13 that is bolted to the lower end of another slide consistingof a rod 14: which is reciprocated through stationary guides 15 and 16 secured to a bracket 17 that is mounted on the head of the machine frame. In order to reciprocate the rod 1 1 it has a stud secured thereto which forms a pivotal connection for the lower end of a link :18, the upper end of which is pivoted to the forward end of a lever 20 that is fulcrumed on the bracket 17 at'21. A. rod 22 connects the opposite end of the lever-20 through a swiveled head 19, with a lever 28, Fig. 7, carry: ing'a roll that runs in a path 2e formed in a cam 25, Fig. 1, which is secured fast on a shaft 26. This shaft also has fixed thereto a gear 27 driven by a pinion28 fast on the main shaft 29 of the machine. These connections, therefore, are arranged to operate the dolfer in the proper'time relationship to the other operations of the machine.

' The doffer. finger has a movement with the rod 14 and also a movement independently of this rod, the latter movement being produced by a spring mechanism so controlled that the spring is held compressedor tensioned during the first part of the dofling movement and is then released so that it gives the finger a sudden or snap movement.

For this purpose the slide 12 is drilled to receive a compression spring 30, Fig. 4, which abuts at one end against the bottom of the; hole in this slide and at its opposite end against a spacing block 31 secured between the lower ends of the side members ofthe frame 13. The slide 12 normally is .held in the position in which-it is shown in Fig. 3 by a latch 32 pivoted on the frame 13 at A spring 34 encircling a rod,as shown in. Fig; 3, acts on the latch to hold it in this position, li hcnthe cam 25 acts through the connections with the rod 14': to raise this rod and thus operate through the finger 8 to pull. the counter lengthwise off the center mold, the frame 13 and all the parts mounted thereon move bodily with the rod la'until the upper beveled end of the latch 32 strikes the beveled end of a pivoted stop or trip'35, Fig. 3. The engagement of these two parts trips the latch 32, whereupon the the slide 12 and the parts carried thereby,

stop, as clearly shown in Figs. 2'and 8, is

adjustably secured to a part of the stationary bracket 17 by two bolts 38 which pass through slots formed in the bar and also by a thrust-bolt 39. The contact of the slide 12 with the stop 37 prevents any further upward movement of the slide and, as the bar 14 continues to rise, the slide 12 is depressed against the tension of the spring 80 until the latch 32 is again seated on the upper end of the slide by means of the spring 34. In other words, this operation compresses the spring in readiness for the next dofling movement. The mechanism therefore is of the load and fire type, referring to the trade term used in other re lationships for somewhat similar mechanisms.

When the doffer descends to doif the next counter the latch 32 again comes into contact with the pivoted stop 35, but at this time it merely rotates the stop in a clockwise direction, as the parts appear in Fig. 3, against the tension of a spring 11 so that the latch is not tripped by its engagement with the stop during the downward stroke of the doffen- It will, now be understood that normally the doifer mechanism is in its raised position where it is out of the path of moveients of the other parts of the machine and out of the operators way, but when the center mold is moved forward into the position indicated in dotted fines in Fig. 6 the doffer is moved downward, and the movetimed that the doffer finger 8 reaches the lower limit of its stroke just before the center 'mold reaches the forward limit of its movement. The center moldstops momentarily when its front face comes in contact with the finger 8 and the finger then rises and slides under the flange C of the counter C,'as clearly shown in Figs. 2 and 3. The doffer continues to rise due to the bodily movement of the rod'or bar 14, thus causing the finger to lift the counter substantially lengthwise off the center mold. After this dofling movement has been initiated or partially: completed the snap action above referred to takes place due to the tripping of the latch 32 by the stop 35. This move- 7 completing the removal of the counter from the center mold and throwing it laterally away from the molds due to its contact with the deflector 36.

It will be evident to those skilled in this art that the invention is susceptible of embodiment in many forms differing in organization and details of construction from the embodiment herein disclosed without departing from the spirit or scope of this invention.

What is claimed as new, is:

1. In a counter molding machine, a counter dofiing mechanism comprising a counter engaging device constructed to engage the flange of a molded counter and operating mechanism therefor arranged to give said device a relatively slow movement to initiate the counter dofling action and thereafter to give the device a greatly ac celerated movement in the same general direction to complete said operation.

2. In a counter molding machine, a counter dotfing mechanism comprising a doii'er finger for engaging the flange of a molded counter and mechanism for operating said finger comprising a cam operated device for giving the finger a to and fro movement, and means partaking of said movement but operative to accelerate the dofiing movement of the finger.

In a counter molding machine, a dofi er finger for engaging the flange of a molded counter, a support for said finger, a spring acting through said support to give said finger a dotting movement, means for giving said support and finger a to and fro stroke, and mechanism operative to tension said spring at one part of said stroke and to release said spring at another part of said stroke.

l. In a counter molding machine, a doft'er finger for engaging the flange of a molded counter, spring actuated mechanism for operating said finger, means for moving said finger back and forth in a predetermined path, and means operative to tension said mechanism during a certain portion of said movement and to release said mechanism at another part of said movement.

5. In a counter molding machine, the com hination with a center mold, cooperating side molds, and operating mechanism for relatively moving said molds, of a dofiing mechanism comprising means operative to remove the counter from the center mold in the general direction of the length of the mold and additional means for engaging the counter and guiding it laterally away from said molds.

6. In a counter molding machine, the combination with a center mold, cooperating side molds, and operating mechanism for relatively moving said molds, of dofling mechanism for removing the counter from said center mold comprising means for throwing the counter away from the mold in the general direction of the length of the mold, and means for deflecting the counter laterally away from said molds.

7. In a counter molding machine, the combination with a center mold, cooperating side molds, and operating mechanism for relatively moving said molds, of doifing mechanism for removing the counter from said center mold comprising a dofier finger for engaging the'flange of the counter, means for operating said finger to throw the counter away from the mold in the general direction of the length of the mold, and a deflector arranged to engage the counter after it leaves said finger to guide it away from said molds.

8. In a counter molding machine, a counter dofling mechanism comprising, in combination, a doffer finger, a slide supporting said finger, a reciprocating support on which said slide is mounted, a spring between said support and said slide tending to give the finger a doffing movement, a latch normally holding the finger against said movement by the spring, means for moving said support in one direction to initiate the dofiing operation and for returning the support again to its original position, and means for tripping said latch during said dofling movement of the support to enable the movement of the slide produced by said spring to complete the dofiing operation.

In a counter molding machine, a counter dofiing mechanism comprising, in combination, a doifer finger, a reciprocating support, means for reciprocating said support'to efi'ect the dofling. operation, a slide supporting said finger and mounted on said support for sliding movement relatively thereto, a spring between said-support and said slide tending to give the slide a dotling movement independent of the movement of the support, a latch normally restraining said slide, a stop against which the latch is carried during the dotting movement oi said support, said stop being operative to trip the latch to release said slide, and a stationary member engaged by the slide at a subsequent point in the stroke of said support to tension said spring and reset the slide.

In testimony whereof I have signed my name to this saecification.

AU USTE F. JACQUEMIN. 

